I'm looking at getting one of these 3 bags and would appreciate some help. Ideally the bag would fit under the seat in front of me and not have to go in the overhead but I realize that may not be possible. I mostly travel on business so I'm hoping to find a bag that's more of a briefcase than camera bag but also has the ability to safely/easily hold my camera (Nikon D70). Unlike several others who posted their bags I won't be taking any extra lenses etc. just the body and 1 lense. I like these because they look more business-like than some of the backpacks others have suggested but am definately open to suggestions! Thanks for the help!

http://www.bhphotovideo.com/c/produc...el_Black_.html

http://www.bhphotovideo.com/c/produc...ptop_Case.html

The Urban Disguise 60 here: http://www.thinktankphoto.com/ttp_product_UrbnDsgs.php